cros: Cleanup lock screen and OOBE C++ backing code.

chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <vector>
@@ skipping 19 matching lines @@
 #include "base/trace_event/trace_event.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browser_process_platform_part_chromeos.h"
 #include "chrome/browser/browser_shutdown.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/chromeos/app_mode/kiosk_app_manager.h"
 #include "chrome/browser/chromeos/input_method/input_method_util.h"
 #include "chrome/browser/chromeos/login/error_screens_histogram_helper.h"
 #include "chrome/browser/chromeos/login/hwid_checker.h"
 #include "chrome/browser/chromeos/login/lock/screen_locker.h"
+#include "chrome/browser/chromeos/login/lock/webui_screen_locker.h"
 #include "chrome/browser/chromeos/login/quick_unlock/pin_storage.h"
 #include "chrome/browser/chromeos/login/quick_unlock/pin_storage_factory.h"
 #include "chrome/browser/chromeos/login/reauth_stats.h"
 #include "chrome/browser/chromeos/login/screens/core_oobe_actor.h"
 #include "chrome/browser/chromeos/login/screens/network_error.h"
 #include "chrome/browser/chromeos/login/startup_utils.h"
 #include "chrome/browser/chromeos/login/ui/login_display_host.h"
 #include "chrome/browser/chromeos/login/ui/login_display_host_impl.h"
 #include "chrome/browser/chromeos/login/ui/login_feedback.h"
 #include "chrome/browser/chromeos/login/ui/webui_login_display.h"
@@ skipping 1173 matching lines @@
   }
 
   is_account_picker_showing_first_time_ = true;
 
   if (delegate_)
     delegate_->OnSigninScreenReady();
 }
 
 void SigninScreenHandler::HandleWallpaperReady() {
   if (ScreenLocker::default_screen_locker()) {
-    ScreenLocker::default_screen_locker()->delegate()->
-        OnLockBackgroundDisplayed();
+    ScreenLocker::default_screen_locker()
+        ->web_ui()
+        ->OnLockBackgroundDisplayed();
   }
 }
 
 void SigninScreenHandler::HandleSignOutUser() {
   if (delegate_)
     delegate_->Signout();
 }
 
 void SigninScreenHandler::HandleOpenProxySettings() {
   LoginDisplayHost::default_host()->OpenProxySettings();
@@ skipping 248 matching lines @@
 }
 
 void SigninScreenHandler::OnFeedbackFinished() {
   CallJS("login.UnrecoverableCryptohomeErrorScreen.resumeAfterFeedbackUI");
 
   // Recreate user's cryptohome after the feedback is attempted.
   HandleResyncUserData();
 }
 
 }  // namespace chromeos